<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>

    //遍历数组
    <c:forEach var="name", items="<%=arr>">
        ${name}<br />
    </c:forEach>

    //遍历map
    <c:forEach var="map", items="<%=HashMap>">
        ${map.key}&nbsp; ${map.value} <br />
    </c:forEach>



</body>
</html>